{
  "manageEntity": {
    "action": "Save",
    "entityId": "822096282",
    "entityType": "Track",
    "nonce": "0x1b366cd5f36aba5ba726f6c3fe7f549a0b9ad3a12e05db2563c41c896482cdc5",
    "signature": "0x7683c33b7cb8bcae09f3becae2abe4029c4f8b830cea92bdad22be03c7fbb67876ade757cc935a9d47e57a492fe601d593c05994b6d7629504fd8572e106a1a71b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}